Title: Modelling and simulation of predictive handover control mechanisms for fast moving mobile nodes in wireless networks
Authors: Raman Kumar Goyal; Sakshi Kaushal
Addresses: Computer Science and Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India ' Computer Science and Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
Abstract: When a mobile node (MN) is moving at a high speed from one network to another network, internet connectivity is degraded as MN cannot complete the handover within the required time owing to delayed triggering of handover request. To ensure seamless connectivity without performance degradation, traditional handover mechanism needs to be enhanced. In this paper, a media independent handover (MIH)-based handover triggering scheme is proposed based on the mobility prediction of MN. Handover triggering is predicted by calculating link expiration time that depends on velocity, direction and distance of MN from the access point. Scanning process required for traditional MIH networks is eliminated using information server (IS) that estimates the received signal strength (RSS) of candidate networks based on the location of MN. Simulation results show that the proposed scheme reduces the handover latency and improves the throughput in homogenous networks at varying velocities of MN.
Keywords: media independent handover; MIH; mobility prediction; MIPv6; received signal strength; RSS; link expiration time; LET; modelling; simulation; predictive handover control; fast moving mobile nodes; wireless networks; connectivity; performance degradation; handover latency; throughput.
International Journal of Simulation and Process Modelling, 2016 Vol.11 No.2, pp.88 - 96
Received: 02 Jun 2015
Accepted: 13 Oct 2015
Published online: 23 Jun 2016 *